Type

CSSDimension<CSSUnit.Pixel> | `${CSSDimension<CSSUnit.Pixel>} ${CSSDimension<CSSUnit.Pixel>} ${CSSDimension<CSSUnit.Pixel>} ${CSSDimension<CSSUnit.Pixel>}` | null

Single value (e.g. "10px") applies to all sides; four values (e.g. "10px 20px 30px 40px") set top, right, bottom, left. Only works with layout enabled. Supported by FrameNode.